package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import io.swagger.annotations.ApiOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;

import java.time.LocalDateTime;
import java.util.List;

import static jdk.nashorn.internal.runtime.regexp.joni.Config.log;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    private static final Logger log = LoggerFactory.getLogger(EmployeeServiceImpl.class);
    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //对前端传过来的明文密码进行md5加密
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    public void save(EmployeeDTO employeeDTO) {
        System.out.println("当前线程的id："+Thread.currentThread().getId());
      Employee employee = new Employee();
      //属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //设置当前的创建时间
       // employee.setCreateTime(LocalDateTime.now());
       // employee.setUpdateTime(LocalDateTime.now());
        //设置当前创建人的id和设置人的id
        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);


    }

    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //select * from employee limit 0,10
        //开始分页查询
//        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
//        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);
//        long total =page.getTotal();
//        List<Employee> records = page.getResult();
//        return new PageResult(total,records);
        try {
            PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
            Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);
            long total = page.getTotal();
            List<Employee> records = page.getResult();
            return new PageResult(total, records);
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("分页查询失败", e);
        }

    }

    /**
     * 启用禁用员工账号
     *
     * @param status
     * @param id
     */
    public void starOrstop(Integer status, Long id) {
   //update  employee set status = ? where id = ?
        Employee  employee= Employee.builder().status(status).id(id).build();
        employeeMapper.update(employee);
    }

    /**
     * 根据id查询员工
     *
     * @param id
     * @return
     */
    @Override
    public Employee getById(long id) {
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("****");

        return employee;
    }

    @PutMapping
    @ApiOperation("编辑员工信息")
    public void update(@RequestBody EmployeeDTO employeeDTO) {
        log.info("编辑员工信息：{}",employeeDTO);
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
       // employee.setUpdateTime(LocalDateTime.now());
        //拦截器中获取当前登录用户的id
        //employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);

    }
}
